Arid
DOI10.1088/1755-1315/74/1/012022
Glacier retreat of the Tian Shan and its impact on the urban growth and environment evaluated from satellite remote sensing data
Fu, B. H.1; Guo, Q.1,2; Yan, F.1; Zhang, J.1; Shi, P. L.1; Ayinuer, M.1; Xue, G. L.1
通讯作者Fu, B. H.
会议名称3rd International Symposium on Earth Observation for Arid and Semi-Arid Environments (ISEO)
会议日期SEP 19-21, 2016
会议地点Dushanbe, TAJIKISTAN
英文摘要

The retreat of mountain glaciers, notably in high Asia, provides evidence for the rise of global temperature. The mass balance is vital for the health of a glacier. If the amount of frozen precipitation in the accumulation zone exceeds the quantity of glacial ice loss due to melting or lies in the ablation zone, the glacier will advance. Conversely, if the accumulation is less than the ablation, the glacier will retreat. Glaciers in retreat will have negative mass balances, and if they do not reach an equilibrium between accumulation and ablation, will eventually disappear. Long-term changes of the mountain glaciers in the Tian Shan, Central Asia, are not well constrained. Analyses of satellite remote sensing data combined with the ground observations reveal a 37.5% decline of glaciered area from 1989 to 2014 in No. 1 Glacier, the headwaters of the Urumqi River basin, Chinese Tian Shan, which could be linked to increased summer melting. The results show that the area of glaciers was reduced from 31.55 km(2) in 18 August 1989 to 28.66 km(2) in 24 August 1994 and 19.74 km(2) in 31 August 2014. The glacier area was reduced by 0.47 km(2)/per year in recent 25 years since 1989, and the annual reduction was 1.5%. Meanwhile, the urban area of Urumqi, the biggest city of Xinjiang Uygur Autonomous Region, increased from 156 km(2) in 1989 to 555 km2 in 2014. Correspondingly, the population of permanent residents increased from 1.06 million in 1989 to 3.53 million in 2014. We suggest that the decline of glacier area is driven primarily by summer melting and, possibly, linked to the combined effects of the global rise in temperatures and black carbon/CO2 emission from coal-fired power plants, cement plants and petroleum chemical plants from the nearby Urumqi and surrounding regions. The continuing retreat of glaciers will have a number of different quantitative impacts. Populations in the arid Central Asia regions are heavily dependent on snow and glacier melt for their irrigation and drinking supplies. A continuation of the current retreat will eventually deplete the glacial ice and substantially reduce or eliminate runoff. It will also affect the availability of fresh water for mountain recreation, animals and plants that depend on glacier-melting.


来源出版物3RD INTERNATIONAL SYMPOSIUM ON EARTH OBSERVATION FOR ARID AND SEMI-ARID ENVIRONMENTS (ISEO2016)
ISSN1755-1307
出版年2017
卷号74
EISBN*****************
出版者IOP PUBLISHING LTD
类型Proceedings Paper
语种英语
国家Peoples R China
收录类别CPCI-S
WOS记录号WOS:000439409200022
WOS关键词CHINA
WOS类目Environmental Sciences ; Remote Sensing
WOS研究方向Environmental Sciences & Ecology ; Remote Sensing
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/306359
作者单位1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100094, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100094, Peoples R China
推荐引用方式
GB/T 7714
Fu, B. H.,Guo, Q.,Yan, F.,et al. Glacier retreat of the Tian Shan and its impact on the urban growth and environment evaluated from satellite remote sensing data[C]:IOP PUBLISHING LTD,2017.
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